-const char cgi_rcs[] = "$Id: cgi.c,v 1.25 2001/09/16 15:02:35 jongfoster Exp $";
+const char cgi_rcs[] = "$Id: cgi.c,v 1.26 2001/09/16 15:47:37 jongfoster Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/cgi.c,v $
*
* Purpose : Declares functions to intercept request, generate
* html or gif answers, and to compose HTTP resonses.
+ * This only contains the framework functions, the
+ * actual handler functions are declared elsewhere.
*
* Functions declared include:
*
*
* Revisions :
* $Log: cgi.c,v $
+ * Revision 1.26 2001/09/16 15:47:37 jongfoster
+ * First version of CGI-based edit interface. This is very much a
+ * work-in-progress, and you can't actually use it to edit anything
+ * yet. You must #define FEATURE_CGI_EDIT_ACTIONS for these changes
+ * to have any effect.
+ *
* Revision 1.25 2001/09/16 15:02:35 jongfoster
* Adding i.j.b/robots.txt.
* Inlining add_stats() since it's only ever called from one place.
#include "list.h"
#include "encode.h"
#include "ssplit.h"
-#include "jcc.h"
-#include "filters.h"
-#include "actions.h"
#include "errlog.h"
#include "miscutil.h"
-#include "showargs.h"
-#include "loadcfg.h"
+#include "cgisimple.h"
#ifdef FEATURE_CGI_EDIT_ACTIONS
#include "cgiedit.h"
#endif /* def FEATURE_CGI_EDIT_ACTIONS */
}
-/*********************************************************************
- *
- * Function : cgi_default
- *
- * Description : CGI function that is called if no action was given.
- * Lists menu of available unhidden CGIs.
- *
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
- *
- * Returns : 0
- *
- *********************************************************************/
-int cgi_default(struct client_state *csp, struct http_response *rsp,
- struct map *parameters)
-{
- char *p;
- char *tmp = NULL;
- struct map * exports = default_exports(csp, "");
-
- /* If there were other parameters, export a dump as "cgi-parameters" */
- if(parameters)
- {
- p = dump_map(parameters);
- tmp = strsav(tmp, "<p>What made you think this cgi takes parameters?\n"
- "Anyway, here they are, in case you're interested:</p>\n");
- tmp = strsav(tmp, p);
- map(exports, "cgi-parameters", 1, tmp, 0);
- free(p);
- }
- else
- {
- map(exports, "cgi-parameters", 1, "", 1);
- }
-
- rsp->body = template_load(csp, "default");
- template_fill(&rsp->body, exports);
- free_map(exports);
- return(0);
-
-}
-
-
-/*********************************************************************
- *
- * Function : cgi_send_banner
- *
- * Description : CGI function that returns a banner.
- *
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
- *
- * CGI Parameters :
- * type : Selects the type of banner between "trans" and "jb".
- * Defaults to "jb" if absent or != "trans".
- *
- * Returns : 0
- *
- *********************************************************************/
-int cgi_send_banner(struct client_state *csp, struct http_response *rsp,
- struct map *parameters)
-{
- if(strcmp(lookup(parameters, "type"), "trans"))
- {
- rsp->body = bindup(image_junkbuster_gif_data, image_junkbuster_gif_length);
- rsp->content_length = image_junkbuster_gif_length;
- }
- else
- {
- rsp->body = bindup(image_blank_gif_data, image_blank_gif_length);
- rsp->content_length = image_blank_gif_length;
- }
-
- enlist(rsp->headers, "Content-Type: image/gif");
- rsp->is_static = 1;
-
- return(0);
-
-}
-
-
-/*********************************************************************
- *
- * Function : cgi_show_version
- *
- * Description : CGI function that returns a a web page describing the
- * file versions of IJB.
- *
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
- *
- * CGI Parameters :
- * type : Selects the type of banner between "trans" and "jb".
- * Defaults to "jb" if absent or != "trans".
- *
- * Returns : 0
- *
- *********************************************************************/
-int cgi_show_version(struct client_state *csp, struct http_response *rsp,
- struct map *parameters)
-{
- struct map * exports = default_exports(csp, "show-version");
-
- map(exports, "sourceversions", 1, show_rcs(), 0);
-
- rsp->body = template_load(csp, "show-version");
- template_fill(&rsp->body, exports);
- free_map(exports);
- return(0);
-
-}
-
-
-/*********************************************************************
- *
- * Function : cgi_show_status
- *
- * Description : CGI function that returns a a web page describing the
- * current status of IJB.
- *
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
- *
- * CGI Parameters :
- * type : Selects the type of banner between "trans" and "jb".
- * Defaults to "jb" if absent or != "trans".
- *
- * Returns : 0
- *
- *********************************************************************/
-int cgi_show_status(struct client_state *csp, struct http_response *rsp,
- struct map *parameters)
-{
- char *s = NULL;
- int i;
-
- FILE * fp;
- char buf[BUFFER_SIZE];
- char * p;
- const char * filename = NULL;
- char * file_description = NULL;
-#ifdef FEATURE_STATISTICS
- float perc_rej; /* Percentage of http requests rejected */
- int local_urls_read;
- int local_urls_rejected;
-#endif /* ndef FEATURE_STATISTICS */
-
- struct map * exports = default_exports(csp, "show-status");
-
- switch (*(lookup(parameters, "file")))
- {
- case 'p':
- if (csp->actions_list)
- {
- filename = csp->actions_list->filename;
- file_description = "Actions List";
- }
- break;
-
- case 'r':
- if (csp->rlist)
- {
- filename = csp->rlist->filename;
- file_description = "Regex Filter List";
- }
- break;
-
-#ifdef FEATURE_TRUST
- case 't':
- if (csp->tlist)
- {
- filename = csp->tlist->filename;
- file_description = "Trust List";
- }
- break;
-#endif /* def FEATURE_TRUST */
- }
-
- if (NULL != filename)
- {
- map(exports, "file-description", 1, file_description, 1);
- map(exports, "filepath", 1, html_encode(filename), 0);
-
- if ((fp = fopen(filename, "r")) == NULL)
- {
- map(exports, "content", 1, "<h1>ERROR OPENING FILE!</h1>", 1);
- }
- else
- {
- while (fgets(buf, sizeof(buf), fp))
- {
- p = html_encode(buf);
- if (p)
- {
- s = strsav(s, p);
- freez(p);
- s = strsav(s, "<br>");
- }
- }
- fclose(fp);
- map(exports, "contents", 1, s, 0);
- }
- rsp->body = template_load(csp, "show-status-file");
- template_fill(&rsp->body, exports);
- free_map(exports);
- return(0);
-
- }
-
- map(exports, "redirect-url", 1, REDIRECT_URL, 1);
-
- s = NULL;
- for (i=0; i < Argc; i++)
- {
- s = strsav(s, Argv[i]);
- s = strsav(s, " ");
- }
- map(exports, "invocation", 1, s, 0);
-
- map(exports, "options", 1, csp->config->proxy_args, 1);
- show_defines(exports);
-
-#ifdef FEATURE_STATISTICS
- local_urls_read = urls_read;
- local_urls_rejected = urls_rejected;
-
- /*
- * Need to alter the stats not to include the fetch of this
- * page.
- *
- * Can't do following thread safely! doh!
- *
- * urls_read--;
- * urls_rejected--; * This will be incremented subsequently *
- */
-
- if (local_urls_read == 0)
- {
- map_block_killer(exports, "have-stats");
- }
- else
- {
- map_block_killer(exports, "have-no-stats");
-
- perc_rej = (float)local_urls_rejected * 100.0F /
- (float)local_urls_read;
-
- sprintf(buf, "%d", local_urls_read);
- map(exports, "requests-received", 1, buf, 1);
-
- sprintf(buf, "%d", local_urls_rejected);
- map(exports, "requests-blocked", 1, buf, 1);
-
- sprintf(buf, "%6.2f", perc_rej);
- map(exports, "percent-blocked", 1, buf, 1);
- }
-
-#else /* ndef FEATURE_STATISTICS */
- map_block_killer(exports, "statistics");
-#endif /* ndef FEATURE_STATISTICS */
-
- if (csp->actions_list)
- {
- map(exports, "actions-filename", 1, csp->actions_list->filename, 1);
- }
- else
- {
- map(exports, "actions-filename", 1, "None specified", 1);
- }
-
- if (csp->rlist)
- {
- map(exports, "re-filter-filename", 1, csp->rlist->filename, 1);
- }
- else
- {
- map(exports, "re-filter-filename", 1, "None specified", 1);
- }
-
-#ifdef FEATURE_TRUST
- if (csp->tlist)
- {
- map(exports, "trust-filename", 1, csp->tlist->filename, 1);
- }
- else
- {
- map(exports, "trust-filename", 1, "None specified", 1);
- }
-#else
- map_block_killer(exports, "trust-support");
-#endif /* ndef FEATURE_TRUST */
-
- rsp->body = template_load(csp, "show-status");
- template_fill(&rsp->body, exports);
- free_map(exports);
- return(0);
-
-}
-
-
-/*********************************************************************
- *
- * Function : cgi_show_url_info
- *
- * Description : CGI function that determines and shows which actions
- * junkbuster will perform for a given url, and which
- * matches starting from the defaults have lead to that.
- *
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
- *
- * CGI Parameters :
- * url : The url whose actions are to be determined.
- * If url is unset, the url-given conditional will be
- * set, so that all but the form can be suppressed in
- * the template.
- *
- * Returns : 0
- *
- *********************************************************************/
-int cgi_show_url_info(struct client_state *csp, struct http_response *rsp,
- struct map *parameters)
-{
- char *url_param;
- char *host = NULL;
- struct map * exports = default_exports(csp, "show-url-info");
-
- if (NULL == (url_param = strdup(lookup(parameters, "url"))) || *url_param == '\0')
- {
- map_block_killer(exports, "url-given");
- map(exports, "url", 1, "", 1);
- }
- else
- {
- char *matches = NULL;
- char *path;
- char *s;
- int port = 80;
- int hits = 0;
- struct file_list *fl;
- struct url_actions *b;
- struct url_spec url[1];
- struct current_action_spec action[1];
-
- host = url_param;
- host += (strncmp(url_param, "http://", 7)) ? 0 : 7;
-
- map(exports, "url", 1, host, 1);
- map(exports, "url-html", 1, html_encode(host), 0);
-
- init_current_action(action);
-
- s = current_action_to_text(action);
- map(exports, "default", 1, s , 0);
-
- if (((fl = csp->actions_list) == NULL) || ((b = fl->f) == NULL))
- {
- map(exports, "matches", 1, "none" , 1);
- map(exports, "final", 1, lookup(exports, "default"), 1);
-
- freez(url_param);
- free_current_action(action);
-
- rsp->body = template_load(csp, "show-url-info");
- template_fill(&rsp->body, exports);
- free_map(exports);
-
- return 0;
- }
-
- s = strchr(host, '/');
- if (s != NULL)
- {
- path = strdup(s);
- *s = '\0';
- }
- else
- {
- path = strdup("");
- }
- s = strchr(host, ':');
- if (s != NULL)
- {
- *s++ = '\0';
- port = atoi(s);
- s = NULL;
- }
-
- *url = dsplit(host);
-
- /* if splitting the domain fails, punt */
- if (url->dbuf == NULL)
- {
- map(exports, "matches", 1, "none" , 1);
- map(exports, "final", 1, lookup(exports, "default"), 1);
-
- freez(url_param);
- freez(path);
- free_current_action(action);
-
- rsp->body = template_load(csp, "show-url-info");
- template_fill(&rsp->body, exports);
- free_map(exports);
-
- return 0;
- }
-
- for (b = b->next; NULL != b; b = b->next)
- {
- if ((b->url->port == 0) || (b->url->port == port))
- {
- if ((b->url->domain[0] == '\0') || (domaincmp(b->url, url) == 0))
- {
- if ((b->url->path == NULL) ||
-#ifdef REGEX
- (regexec(b->url->preg, path, 0, NULL, 0) == 0)
-#else
- (strncmp(b->url->path, path, b->url->pathlen) == 0)
-#endif
- )
- {
- s = actions_to_text(b->action);
- matches = strsav(matches, "<b>{");
- matches = strsav(matches, s);
- matches = strsav(matches, " }</b><br>\n<code>");
- matches = strsav(matches, b->url->spec);
- matches = strsav(matches, "</code><br>\n<br>\n");
- freez(s);
-
- merge_current_action(action, b->action);
- hits++;
- }
- }
- }
- }
-
- if (hits)
- {
- map(exports, "matches", 1, matches , 0);
- }
- else
- {
- map(exports, "matches", 1, "none", 1);
- }
- matches = NULL;
-
- freez(url->dbuf);
- freez(url->dvec);
-
- freez(url_param);
- freez(path);
-
- s = current_action_to_text(action);
- map(exports, "final", 1, s, 0);
- s = NULL;
-
- free_current_action(action);
- }
-
- rsp->body = template_load(csp, "show-url-info");
- template_fill(&rsp->body, exports);
- free_map(exports);
- return 0;
-
-}
-
-
/*********************************************************************
*
* Function : error_response
* Returns : N/A
*
*********************************************************************/
-static void get_http_time(int time_offset, char * buf)
+void get_http_time(int time_offset, char * buf)
{
static const char day_names[7][4] =
{ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
}
-/*********************************************************************
- *
- * Function : cgi_robots_txt
- *
- * Description : CGI function to return "/robots.txt".
- *
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
- *
- * CGI Parameters : None
- *
- * Returns : 0
- *
- *********************************************************************/
-int cgi_robots_txt(struct client_state *csp, struct http_response *rsp,
- struct map *parameters)
-{
- char buf[100];
-
- rsp->body = strdup(
- "# This is the Internet Junkbuster control interface.\n"
- "# It isn't very useful to index it, and you're likely to break stuff.\n"
- "# So go away!\n"
- "\n"
- "User-agent: *\n"
- "Disallow: /\n"
- "\n");
-
- enlist_unique(rsp->headers, "Content-Type: text/plain", 13);
-
- rsp->is_static = 1;
-
- get_http_time(7 * 24 * 60 * 60, buf); /* 7 days into future */
- enlist_unique_header(rsp->headers, "Expires", buf);
-
- return 0;
-}
-
-
/*
Local Variables:
tab-width: 3